Black Knapweed

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Plant Bio

Common Name:Black Knapweed
Family:Asteraceae
Genus:Centaurea
Species:nigra
Classification/Rank:Extremely Invasive
Method of Transportation:
Habitat/Range:

Description

• perennial herb that grows 0.1-0.8m tall • stems are erect, branched, and rough hairy • leaves are toothed, or shallowly lobed to entire, and are hairy above and below; lower leaves are long stalked and become unstalked with increasing plant height • flowers are disk shaped, purple, and found solitarily at the end of upper branches

News

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posted: November 17, 2017
Principles of Integrated Pest Management

Integrated Pest Management is not just pulling and spraying weeds - Learn how you are already using many Integrated Pest Management...

posted: September 11, 2017
Annual General Meeting - Northwest Invasive Plant Council

Join us for our Annual General Meeting.

October 19th, 2017
9:30 AM to 2:00 PM
North Cariboo Senior Soccer League Clubhouse
4222 18th Ave,...